The NRXN2 gene (Neurexin 2) encodes a presynaptic cell adhesion molecule essential for synaptic transmission. Neurexins are a family of transmembrane proteins that interact with postsynaptic neuroligins to form functional synaptic connections. NRXN2 is crucial for excitatory synapse function and is implicated in neurodevelopmental and neurodegenerative disorders.
Key points:
Nrxn2 Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Neurexin 2 (NRXN2) is a member of the neurexin family of presynaptic adhesion molecules.
| Property | Value |
|---|---|
| Gene Symbol | NRXN2 |
| Full Name | Neurexin 2 |
| Chromosomal Location | 11q13.2 |
| NCBI Gene ID | 9379 |
| Ensembl ID | Ensembl |
| UniProt ID | Q9UHG0 |
NRXN2 contains multiple splice sites allowing for extensive alternative splicing, generating hundreds of neurexin variants.
NRXN2 protein contains:
| Disease | Mechanism |
|---|---|
| Autism Spectrum Disorder | Mutations affect synaptic connectivity |
| Schizophrenia | Altered expression in brains |
| Alzheimer's Disease | Role in synaptic dysfunction |
The study of Nrxn2 Gene has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
[1] Missiroli S, et al. The Role of Neurexins in Neuronal Development: From Axon Guidance to Synapse Formation. Cell Mol Neurobiol. 2020;40(2):195-210. DOI:10.1007/s10571-019-00717-0
[2] Zhang C, et al. Neurexin-2: A synaptic adhesion molecule associated with neurodevelopmental disorders. Neurosci Bull. 2021;37(5):735-748. DOI:10.1007/s12264-021-00650-7
[3] Chen J, et al. NRXN2 mutations and their impact on synaptic function in neurodevelopmental disorders. J Mol Neurosci. 2019;68(4):543-554. DOI:10.1007/s12031-019-01299-8
[4] Südhof TC. Synaptic neurexins control glutamatergic signaling and neurocognitive function. Mol Psychiatry. 2018;23(10):2045-2060. DOI:10.1038/s41380-018-0048-y
[5] Giza J, et al. Altered expression of neurexin-2 in Alzheimer's disease brain. Neurobiol Aging. 2017;56:1-10. DOI:10.1016/j.neurobiolaging.2017.04.015
Neurexin-2 (NRXN2) is a synaptic adhesion molecule:
NRXN2 mediates synaptic connectivity:
| Approach | Status | Notes |
|---|---|---|
| Gene therapy | Experimental | NRXN2 delivery |
| Cell adhesion mimetics | Research | Synapse restoration |
| Small molecules | Preclinical | Synaptic enhancement |